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Evolution & Behaviour

showing 6-10 of 41 breaks

Bloody-Minded Parasites and Sex

Most plants and animals reproduce sexually. Why is sex so common? This question has intrigued scientists for generations. Even Darwin pondered its prevalence. Sex occurs when two organisms merge their genetic material. Sexual parents produce genetically distinct offspring. Many organisms, however, reproduce asexually, meaning a... click to read more

  • Kayla Stoy | PhD student at Population Biology, Ecology, and Evolution, Emory University, Atlanta, Georgia, USA
  • Amanda K. Gibson | Assistant Professor at Population Biology, Ecology, and Evolution, Emory University, Atlanta, Georgia, USA
Views 659
Reading time 3.5 min
published on Sep 17, 2018
The Arctic’s singing whales

The bowhead whale is above all, a whale of superlatives. It is the only large whale to live year-round in the Arctic, its "bowed head" allows it to push up through half a meter of ice, it can live up to 200 years and it... click to read more

  • Kate Stafford | Principal Oceanographer at Applied Physics Laboratory, University of Washington, Washington, USA
Views 883
Reading time 4 min
published on Sep 13, 2018
The European idea, a 5000 years old concept according to the Bell Beaker culture

The 3rd millennium BC in Occidental Europe and Northern Africa is marked by the appearance of a very specific type of ceramic: the bell beaker. As its name indicates, these beakers have the shape of inverted bells, and were decorated with various geometric patterns. They... click to read more

  • Claudine Abegg | PhD student at Département F.-A. Forel des sciences de l’environnement et de l’eau, Université de Genève, Genève, Switzerland
  • Marie Besse | Professor at Département F.-A. Forel des sciences de l’environnement et de l’eau, Université de Genève, Genève, Switzerland
Views 452
Reading time 3.5 min
published on Aug 23, 2018
The healthy happiness behind dog ownership

Dogs have been called man's best friend for several centuries and it is not uncommon to read about the stereotype benefits on health and well-being attributed to their companionship. Their presence in a home has been associated with longevity, less loneliness, better adaptation to living... click to read more

  • Mwenya Mubanga | PhD student at SciLifeLab, Uppsala University, Uppsala, Sweden
Views 564
Reading time 2.5 min
published on Aug 16, 2018
The sudden sprints of evolution

As evolutionary scientists, we see a paradox when we compare short-term ("ecological") and long-term ("geological") observations of evolutionary rates. When we look at adaptation to contemporary changes in environment, rapid evolutionary responses seem to be the norm. However, when examining body evolution in the fossil... click to read more

  • Joshua G. Schraiber | Professor at Department of Biology, Temple University, Philadelphia, PA 19122, USA
Views 470
Reading time 4 min
published on Aug 7, 2018